Chocolate Avocado Mug Cake with Peanut Butter Swirl

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A single-serving, moist chocolate cake made in a mug using avocado for richness, with a swirl of peanut butter adding a luscious finish. This american-inspired desserts ready in about 7 minutes layers ripe avocado, all-purpose flour, unsweetened cocoa powder into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 320 calories and feeds 1, so it slots into a weekend bake or a special-occasion dessert tray. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 5 min Cook: 2 min Serves 1 American cuisine 320 cal/serving
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Ingredients

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Instructions

  1. Step 1: In a small bowl, mash 1/2 medium ripe avocado until smooth and creamy, about 1 minute.
  2. Step 2: Add 4 tablespoons all-purpose flour, 2 tablespoons unsweetened cocoa powder, 3 tablespoons granulated sugar, and 1/4 teaspoon baking powder to the mashed avocado. Stir gently to combine.
  3. Step 3: Pour in 3 tablespoons milk and 1/2 teaspoon vanilla extract, stirring until the batter is smooth and thick.
  4. Step 4: Transfer batter to a microwave-safe mug. Drop 1 tablespoon smooth peanut butter on top and use a toothpick or knife to swirl it into the batter.
  5. Step 5: Microwave on high for 70-90 seconds until the cake has risen and is firm but still moist. Let cool for 2 minutes before enjoying warm.

Frequently asked questions

How long does Chocolate Avocado Mug Cake with Peanut Butter Swirl take to make?

Total time is about 7 minutes (5 min prep + 2 min cook). Most home bakers find this fits a weekend afternoon; chill or store as the recipe directs before serving.

How do I store leftover Chocolate Avocado Mug Cake with Peanut Butter Swirl?

Cool fully before storing. Most baked desserts keep at room temperature in an airtight container for 2–3 days, or in the fridge for up to 5 days. Cream- or custard-based desserts must go in the fridge within 2 hours; reheat gently or serve cold per the recipe.

Can I substitute ingredients in Chocolate Avocado Mug Cake with Peanut Butter Swirl?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Chocolate Avocado Mug Cake with Peanut Butter Swirl for a different number of people?

The recipe is written for 1 servings. Multiply each ingredient by (your serving target / 1). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Chocolate Avocado Mug Cake with Peanut Butter Swirl?

American desserts like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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